The heat change `Delta H` for the reaction
`2 CO +O_2to 2 CO_2, Delta H=-135` kcal is called ______ .

The heat change accompanying the reaction 2H_(2)(g)+O_(2)(g) to 2H_(2)O(l) : DeltaH= -136kcal is called

The heat change accompanying the reaction 2H_(2)(g)+O_(2)(g) to 2H_(2)O(l) : DeltaH= -136kcal is called

Calorific value of ethane, in k J/g if for the reaction 2C_(2)H_(6) + 7O_(2) rightarrow 4CO_(2) + 6 H_(2)O, Delta H = -745.6 kcal

Calorific value of ethane, in k J/g if for the reaction 2C_(2)H_(6) + 7O_(2) rightarrow 4CO_(2) + 6 H_(2)O, Delta H = -745.6 kcal